Steam-valve.



$10,893,527. PATENTED JULY 14, 1908. (I. J. LAW-LEE,

STEAM VALVE APPLICATION FILED MAY 6.-190l 5 31 WITNESSES: l/VVE/YTOR ,4 TTOR/VEY JAMES LA LER, or MOUNT VERNON, NEW YORK.

STEAM-VALVE.

I Specification of Letters Patent. Application filed May 6,1907. Serial No. 371,999.

Patented July 14, 1908.

To all whom it may concern:

Be it known that 1, JAMES J. LAWLER, a izen of the United States, residing at \nnt Vernon, Westchester county, New rk State, have invented. a new and useful ""iovement in Steam-Valves, of which the lowing is a specification.

My invention relatesto steam valves and for itsobjects the production of a valve h...v' 1g a controlling means for regulating the law of steam andan independent noiseless and automatic means of permitting the return of the water of condensation to. the sonrce of supply, particularly when used. on a one pipe heating system, under a low pit-assure, or whennsed on a, vacuum system of heatingv it is found, in ordinary )ractice, that a Y pipe system of the ind mentioned not be regulated to Work satisfactorily on "r e ywarm days the'v'alve must be ousullicienily to not only permit the. .enter the radiator'to which it is at"- "iene-i, hut also to permit the returnof the ter of condensation, and when thus set, entire radiator is filled with steam and is ally too hot on many days in spring and .mn, when onlya little heat is desired. ien. opened only partly to get't-his desired result, the radiator will be satisfactory only so long until the said water begins to return, on it meets the incoming steam which :Eirces hack and-causes the radiator to hammer, to overcome which the valve must be turned on full or closed off entirely. overcome this difliculty in the valve shown in the accompanying drawing, in which Figure 1 is central vertical sectional view of my improved valve, the check valve being closed. F is a sectional plan view on line X---X on Fig. 1, the check valve and dug removed, and Fig. 3, is a radiator, :artly in central section, having a valve of improved construction connected, the Y alve being also outline, the chec r valve being open.

Like reference characters denote corresponding parts throughout the several views.

Referring to the drawings, 1 denotes a slve 'ste. i having the end walls of which threaded as at 3. The stem 1 extends through the hood .1 which is secured to the valve casing 10 and is provided with a stuffing box 5. The hood 4: is formed with screw threads adapted to mesh "with the screw threads 3 of the stem. Carried on that artlyin section and in solid I end of the stem which is arranged within the valve casing 10 is a carrying member 7 having a valve disk 6, the latter being' suitably connected to the frame. The valve casing is formed with an interiorly screw-threaded inlet end 8 and an exteriorly screw-threaded outlet end 9. Arranged within the valve casing 10 is a vertically extending hollow tubular member 11, the top edge thereof constituting a seat for the valve disk 6 and the lower end thereof terminating in the inner face of the wall of the valve casing and formed in connection with the wall a pocket 12 which is ermanently in commumcation with the out et' end of the valve casing and normally out of communication with the inlet of the valve'casing. The tubular extension 11 is adapted to establish communication between the inlet and outlet of the easing. The valve casing 10 is provided with an extension 13 closed by aplug- 14 to permit of the arranging within the valve casing of a check valve-15 which constitutes a means for normally closing the pocket 12' to the inlet 1 end of the valve casing. The check valve 15 k is at an angle so that it will automatically close by gravity when pressure upon its inner face is removed. The check valve 15 is what may he termed a 'pressure operated valve and the manner in which it is operated establishes communication between the pocket and the inlet valve casing will be hereinafter referred to.

The operation of the valve is as follows 2. ifthe valve is attached to a radiator, as shown, in Fig. 8and it is desired to turn on' a little steam, as shown by position of disk in Fig. 1 the steam will enter the radiator, where it is condensed, the water returning back through the radiator and into'the pocket formed by the tubular member 11, the top edge of which forming an elevated valve seat for the valve disk 6, and when the weight of the water overcomes the weight of the check valve, the latter will open and permit the water to flow through it, without distributing the flow of the incoming steam, thereby avoiding the hammering or gurgling which is incidental to the use of the valves heretofore.

At the same time my improved valve can be used under pressure the same as any ordinary radiator valve on a one ipe heating system, by opening the control ing valve to its full capacity,; thus allowing the radiator to fill with steam pressure carried onlooiler, and under this condition my improved valve nary construction.

is an improvement for the reason that'the water of condensation travels to main flow pipes through the check valve passage which results in keeping the radiator more dry than would be possible by using one valve ofordi- This constitutes what I at present regard as the best known form of the invention but to the details of which my invention is not, in all respect, restricted, as many changes in detail and many apparently widely different variations thereof may be made without departing from the spirit of the invention or the scope of the subjoined claims.

\Vhat I claim as new and desire to secure by Letters Patent is' '1. A steam valve comprising a casin having an inlet and an outlet, a vertical y extending hollow tubular member arranged within the casing and having its lower end terminating in the wall of the casing at a point removed from said inlet, a lower portion of said member in connection with the wall of the casing forming a pocket normally out of communication with and above said inlet, and a pressure operated means for establishing communication between the pocket and the inlet, said member establishing communication between the inlet and the chamber formed by the casing and the upper end of said member forming a valve seat, combined with a manually operated valve adapted to engage said seat.

2. A steam valve comprising a casing hav ing an inlet and an outlet, a hollow tubular member arranged within the casing and having one end terminating in the wall of the casing at a point removed from the inlet thereof,

that portion of the member which terminates adapted to, enga e said seat, train automatically operab e pressure operated means for establishing communication between the pocket-and the inlet, said means adapted to return to closing position by gravity when pressure isremoved therefrom.

3. A steam valve comprising a casing having an inlet and an outlet, a hollow tubular member having a fixed lower end, arranged in said casing and forming in connection with the casing a pocket normally but of communication with the inlet, said member extending above said inlet and establishing communication between the inlet and the chamberformed by the casing, a manually operated valve adapted to engage the free end of said member to close it, and a pressure operated means for establishing communication between the pocket and the inlet.

4'. A steam valve comprising a casing have ing an inlet and an outlet, an elongated hollow tubular member extending withinfsaid casing forming in connection with the valve casing a pocket and further constituting an elevated valve seat, a manually operated valve adapted to engage said seat to close said member, said member establishing communication between the inlet and the casing formed by the chamber when the valve is re moved from the seat, said pocket" normally out of communication with said inlet, and an automatically operable pressure operated means adapted when pressure is applied to one side thereof to establish communication between said pocket and the inlet, said means adapted to automatically return to inoperative position bygravity.

In testimony whereof, I have signed my name to thisspecification in the presence of two subscribing witnesses, this twentynintlh day of April 1907. I

JAMES J. LAWLEB.

l/Vitnesses:

E. LEIPSIC, GEo. H. CLARK. 

